The Modbus RTU green connector (also used as the programming port) on the AC10 may occasionally be misplaced due to its small size.
The connector, pictured below, can be purchased unlabeled on the web under part number 15EDGK-3.81-04P-14-00AH. You can then label the connector as pictured below.
If you require the pre-labelled connector part (as shown above) contact Parker Applications.
21APR20 JD